[Users] regarding on openser and softphones

Hello everybody,

I need help from you. Please sovle my issue in regard openser and softphone . I installed openser and x-lite softphone in box. In ' LAN ' network its working fine.

But I keep openser server in other place giving with specific public ip as sip-domain and also sip-proxy damain. its not working its give " Time out contact network admin "

What i need to give "listen " parameter in openser.cfg , i gave ip address of the system, if i gave the public ip as " listen " parameter its giving the error... in Dedug mode..as udp_init:bind(5, ox811994,16) on xx.xx.xx.xx:cannot assign requested address.

These are my issues..

please help me. please excuse in my english if any mistakes..